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H. V. MOORE. COMBINED PATTERNAND GORE BOX.

Patented Jan. 5, 1897.

MW WW Witnesses Inventor Attorney Tn: NORRIS PEI-ER; n. menu-ma.wumnomu. v. C.

UNITED STATES PATENT OFF CE.

HARRY V. MOORE, OF HAMILTON, OHIO, ASSIGNOR TO F. d: L. KAHN & BROS, OFSAME PLACE.

COMBINED PA TTERN AND CORE-BOX.

SPECIFICATION forming part of Letters Patent No. 574,748, dated'J'anuary5, 1897. Application filed $eptember l4, 18J6. Serial No. 605,709. (Nomodel.)

To all whom it may concern.-

Be it known that I, HARRY V. MOORE, of Hamilton, Butler county, Ohio,have invented certain new and useful Improvements in a Combined Patternand Gore-Box, of which the following is a specification.

My invention pertains to improvements in combined patterns andcore-boxes for metalfounders use in the production of boxes having topand frontal openings, and the same will be readily understood from thefollowing description, taken in connection with the accompanyingdrawings, in which-- Figure l is a vertical section of the combinedpattern and core-box in condition and position ready to have thecore-sand rammed into it; Fig. 2, a vertical section of the mold andcore after the pattern has been withdrawn and the mold is put inposition ready for pouring; Fig. 3, a perspective view of the pattern,this view serving also to illustrate the box which is to be produced bycasting in the mold; and Fig. 4, avertical section of a half flaskcontaining half the pattern and disposed on its follow-board ready to befilled and rammed.

In the drawings, confining attention for the present exclusivelyto Fig.3, 1 indicates the pattern, similar in shape to the casting to beproduced, the pattern being the same in character as the casting exceptthat the pattern is parted, as hereinafter explained; 2, the front wallof the pattern; 3, an opening through this front wall; 4, the top wallof the pattern; 5, an opening through this top wall, openings 3 and 5being therefore in planes at right angles to each other; 6, the upperportion of the pattern, and 7 the lower portion of the pattern, theportions 6 and 7 consti- Now, giving attention exclusively to Fig. 4 ofthe drawings, 8 indicates a follow-board on which is placed portion 6 ofthe pattern, the top wall 4 of the pattern, having the opening 5, beingupward; 9, a half-flask set upon this around the opening 3, the outeredges of the walls of box 11 making contact with the inner surface ofthe front wall of the flask around opening 10 therein, box 11 resting onf0llowboard 8 and being open below to the fo1lowboard 5 12, a plateclosing opening 5 in the top wall of pattern part 6; 13, a stool on thefollow-board, within the pattern part 6 and supporting plate 5; 14, astay fast on the follow-board and serving to hold the front of thepattern firmly up against the inner edge of box 11, the front wall ofthe pattern being thus clamped between box 11 and stay 14; 15, an anchorprojecting from the lower surface of plate 12, which anchor will belater explained more fully, and 16 an anchor projecting from the uppersurface of plate 12, which anchor will be later more fully explained.

The partsbeing in the position and condition indicated in Fig. 4, thefront wall of the pattern is held rigidly up against box 11 and all isin condition for forming the half-mold. The half-flask is to be filledand rammed, plate 12 keeping any sand from reaching the'interior of thepattern through the top opening and box 11 keeping the sand fromenteringthe pattern through the front opening 3. WVhen the half-mold hasthus been rammed it is to be turned over and the follow-board Swith thestool 13 removed. The face of the mold is then to be dusted withparting-sand, this face being now uppermost and being the face whichwould be downward while the mold is being rammed. The lower portion 7 ofthe pattern, Fig. 3, is now to be properly set over the pattern portion6, which is in the halfmold, the two pattern parts being doweledtogether, as is usual in parted patterns. Another half-flask similar tohalf-flask 9 and similarly provided with an opening 10, together with asimilar box 11, is now to be set upon the completed half mold and sandrammed therein, as before. This operation has completed the mold properready for the ramming of the core. The completed mold, with its twohalves properly clamped together, is now to be turned to the positionshown in Fig. 1, with its opening 10 upwardly.

17 indicates the sand in the two half-flasks around the pattern andforming the mold. The interior of the pattern is now to be filled withsand through opening 10 and properly rammed flush with the upper surfaceof what is in the present position the top wall of the flask. Looking atFig. 1 and considering it before the sand is put into the interior ofthe pattern, let us consider half-flask 19 as the cope and half-flask 9as the drag, line 20 being the parting which separates these two moldparts and being also the line of parting between the two parts 6 and 7of the pattern. After the sand has been rammed to, form the core themold is to be turned to bring drag 9 uppermost. This condition may bebest appreciated by properly turning Fig. 1 of the drawings so that drag9 can be viewed as being the top of the drawing. Drag 9 is now to belifted, after which portion 6 of the pattern is to be removed and thedrag replaced. The mold is nowto be turned over, bringing cope 19uppermost. By again turning the drawing it will be appreciated thatpattern portion 7 is now at the top of the mold and that pattern portion0 is absent, and that the core would be supported by the sand belowplate 12, the plate acting as a support between the core and themold-sand at the opening in wall it of the pattern. Cope 19 is now to belifted, pattern part 7 is to be removed, and the mold closed byreplacing the cope. This completes the mold, as seen in Fig. 2, and themold is ready for pouring, the core being supported by the mold-sandunder plate 12.

It is essential that plate 12 be present while the drag is being rammed,but it is not essential that it should stay in the mold. After the draghas been rammed and turned and the follow-board and stool removed theplate 12 may be removed and the mold-surface left by it in the cope maybe dusted with partingsand, in which case, when the mold is completedready for pouring, the core will not only be supported by but will be indirect parting contact with the mold-sand below it. But in practicecases will arise in which the core is very large in proportion to thesize of theopening 5 in thetop of the box, giving considerableunsupported overhang to the lower corners of the core, making a weakcore and also producing considerable floating tendency 011 the part ofthe core. In such cases plate 12 offers peculiar facilities forstrengthening the core or for anchoring it to the mold or for doingboth. In the drawings I have shown the plate as provided with an anchor15 upon that surface of the plate which comes in contact with the core.This anchor may be extended into any desired direction or have anydesired form to engage the sand within the core, and it may reach intowhatever parts of the core may be found most in need of support. Plate12 in such case serves at once as a filler for the opening 5 in thepattern, as a parting between the mold-sand and the core-sand, and as ananchor for increasing the structural stability of the core. But if it befound necessary to anchor the core to the mold to guard against itsfloating then anchor 16 on the outer surface of plate 12 may beemployed, and it may have any form or mechanical c011- nections bestsuited to detaehablybinding the plate to the drag. In the drawings theanchor 16 is a mere stud projecting into the sand of the drag. This willbe sufficient in many cases, while other cases may call for a furtherextension ofthis anchor, so as to receive a key or bolt, in connectionwith a cross-bar 011 the drag, as is common in the anchoring of cores.

I claim as my invention- 1. The combination, substantially as set forth,of a half-pattern portion in box form with an opening in its top, anopening in its front wall and an open bottom, a follow-board supportingsaid pattern portion, a plate closing said top opening, a half-flaskresting on the follow-board and having inone of its walls an openingcorresponding with the opening in the front wall of the pattern portion,a half box between the front wall of the half-flask and the front wallof the pattern portion around the openings therein, and a stay clampingthe pattern against the inner edge of said box.

2. The combination, substantially as set forth, of a box-pattern havingan opening in its upper Wall and an opening in its front wall and havinga parting through the lastmentioned opening in a plane substantiallyparallel with the top wall of the pattern, two half-flasks inclosingsaid pattern and joining each other in a plane substantially parallelwith said top Wall and having in their joint an opening opposite 'to andcorresponding with the opening in the front wall of the pattern, and ametallic box with the edges of its walls in contact with the outersurface of the front wall of the pattern and with the inner surface ofthe corresponding wall of the flask around the openings therein.

3. The combination, substantially as set forth, of a box'pattern havingan opening in its top wall and an opening in its front wall and having aparting through said latter opening substantially parallel with theplane of the top opening, and a plate in said top opening.

4. The combination, substantially as set forth, of a box-patternhavingan opening in its top wall and an opening in its front wall and aparting through said front opening sub- IIO stantially parallel With theplane of the top opening, a flask formed in two parts and inclosing saidpattern and having an opening in one of its Walls corresponding with thefront opening in said pattern, and a plate in the top opening of thepattern and adapted to serve as a parting between mold sand rammed inthe flask outside the pattern and core-sand rammed ithin the pattern.

5. The combination substantially as set forth, of a box-pattern havingan opening in its top Wall and an opening in its front Wall and partedthrough said latter opening in a plane substantially parallel With theplane of the top opening, a flask surrounding the pattern, and a platein the top openingof the pattern and provided with an anchor projectingfrom its inner surface and adapted to serve as a parting betweenmold-sand and core-sand.

6. The combination, substantially as set forth, of a box-pattern havinga top opening and a front opening and a parting through the frontopening in a plane substantially parallel with the top opening, and aplate Within said top opening and provided with an anchor projectingfrom its outer surface and adapted to serve as a parting betweenmoldsand and core-sand.

7. The combination, substantially as set forth, of a box-pattern havinga top opening and a front opening and part-ed through the front openingin a plane substantially parallel with the top opening, and a plate insaid top opening and provided with anchors projecting from its inner andouter surfaces and adapted to serve as a parting between moldsand andcore-sand.

HARRY V. MOORE.

Witnesses:

J. W. SEE,

SAM D. FITTON, Jr.

